Test Bank for ECGs Made Easy 6th Edition by Barbara J Aehlert 9780323401302 Chapters 1-10 Complete Guide.

Test bank for ECGs Made Easy
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7th Edition by Barbara J Aehlert
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Chapters 1 - 10
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,ECGs Made Easy 7th Edition by Barbara Aehlert Test Bank
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Table of Contents:
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Chapter 1. Anatomy & Physiology
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Chapter 2. Basic Electrophysiology
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Chapter 3. Sinus Mechanisms
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Chapter 4. Atrial Rhythms
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Chapter 5. Junctional Rhythms
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Chapter 6. Ventricular Rhythms
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Chapter 7. Atrioventricular Blocks
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Chapter 8. Pacemaker Rhythms
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Chapter 9. Introduction to the 12-Lead ECG
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Chapter 10. Post-Test
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,Chapter 01: Anatomy and Physiology
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Aehlert: ECGs Made Easy, 7thEdition
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MULTIPLECHOICE v




1. The apex of the heart is formed bythe
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a. tip of the left ventricle v v v v




b. tip of the right atrium v v v v




c. right atrium and right ventricle v v v v




d. left atrium and left ventricle v v v v




ANSWER: A v




The heart’s apex, or lower portion, is formed bythe tip of the left ventricle. The apex lies just
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above the diaphragm, between the fifth and sixth ribs, in the midclavicular line.
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OBJ: Identify the surfaces of the heart.
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2. The left atrium receives blood from the
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a. pulmonary veins v




b. aorta
c. pulmonary arteries v




d. inferior vena cava v v




ANSWER: A v




The left atrium receives freshly oxygenated blood from the lungs via the right and left
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pulmonary veins.
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OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
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3. The anterior surface of the heart consists primarily of the
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a. left atrium v




b. right atrium v




c. left ventricle v




d. right ventricle v




ANSWER: D v




The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is
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formed by portions of the right atrium and the left and right ventricles. However, because the
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heart is tilted slightly toward the left in the chest, the right ventricle is the area of the heart that
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lies most directly behind the sternum.
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OBJ: Identify the surfaces of the heart.
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4. Blood pressure is determined by
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a. stroke volume; heart rate v v v




b. heart rate; cardiac output v v v




c. cardiac output; peripheral vascular resistance v v v v




d. stroke volume; peripheral vascular resistance v v v v




ANSWER: C v




Blood pressure is equal to cardiac output multiplied byperipheral vascular resistance.
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, OBJ: Identifyand explain the components of blood pressure and cardiac output.
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5. The right atrium receives venous blood from the head, neck, and thorax via the
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the remainder of the body via the
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a. coronarysinus; superior vena cava; inferior vena cava v v v v v v v




b. superior vena cava; coronary sinus; inferior vena cava v v v v v v v




c. inferior vena cava; superior vena cava; coronary sinus v v v v v v v




d. superior vena cava; inferior vena cava; coronary sinus v v v v v v v




ANSWER: D v




The right atrium receives blood low in oxygen from the superior vena cava, which carries
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blood from the head and upper extremities; the inferior vena cava, which carries blood from
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the lower body; and the coronary sinus, which is the largest vein that drains the heart.
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OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
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6. The heart is divided into
v v v v chambers but functions as a v v v v -sided pump. v




a. two; four v




b. three; two v




c. four; two v




d. four; three v




ANSWER: C v




The heart has four chambers: two atria and two ventricles. The right and left sides of the heartare
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separated by an internal wall of connective tissue called a septum. The interatrial septum
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separates the right and left atria. The interventricular septum separates the right and left
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ventricles. The septa separate the heart into two functional pumps. The right atrium and right
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ventricle make up one pump. The left atrium and left ventricle make up the other.
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OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
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7. Stimulation of alpha1 receptors results in v v v v v .
a. increased heart rate v v




b. peripheral vasoconstriction v




c. constriction of bronchial smooth muscle v v v v




d. increased force of myocardial contraction v v v v




ANSWER: B v




Alpha1 receptors are found in the eyes, blood vessels, bladder, and male reproductive organs.
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Stimulation of alpha1 receptor sites results in constriction.
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OBJ: Compare and contrast the effects of sympathetic and parasympathetic stimulation of the heart.
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8. Which side of the heart is a low-pressure system that pumps venous blood to the lungs?
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a. Left
b. Right
ANSWER: B v




The job of the right side of the heart is to pump unoxygenated blood to and through the lungs to
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the left side of the heart. This is called the pulmonary circulation. The right side of the heartis a
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low-pressure system.
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